WO2017008445A1 - Appareil thermostatique combinant accumulation de froid et accumulation de chaleur ainsi que procédé de commande associé - Google Patents

Appareil thermostatique combinant accumulation de froid et accumulation de chaleur ainsi que procédé de commande associé Download PDF

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Publication number
WO2017008445A1
WO2017008445A1 PCT/CN2015/098353 CN2015098353W WO2017008445A1 WO 2017008445 A1 WO2017008445 A1 WO 2017008445A1 CN 2015098353 W CN2015098353 W CN 2015098353W WO 2017008445 A1 WO2017008445 A1 WO 2017008445A1
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Prior art keywords
storage
heat
phase change
cold
temperature
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Ceased
Application number
PCT/CN2015/098353
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English (en)
Chinese (zh)
Inventor
刘占杰
陈海涛
李正生
王利鑫
杨波
雷绵红
郑玲
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HAIER MEDICAL AND LABORATORY PRODUCTS Co Ltd
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HAIER MEDICAL AND LABORATORY PRODUCTS Co Ltd
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Publication of WO2017008445A1 publication Critical patent/WO2017008445A1/fr
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Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators

Definitions

  • the present invention relates to a refrigeration device, and more particularly to a cold storage and heat storage combined constant temperature device and a control method thereof.
  • the technical problem to be solved by the present invention is: Providing a cold storage and heat storage combined constant temperature device and a control method, realizing constant temperature refrigeration storage, and improving the safety of the cold chain process of medicines and vaccines.
  • the technical solution provided by the present invention is a cold storage and heat storage combined thermostat device, comprising an incubator, a compressor, an evaporator and a condenser, wherein the compressor, the evaporator and the condenser are connected Forming a refrigeration circuit
  • the heat preservation box body is further provided with a storage cavity, further comprising a cold storage module and a heat storage module, wherein the cold storage module comprises a phase change cold storage component and a heat pipe, wherein the heat pipe is located in the storage cavity One end portion of the heat pipe is inserted into or attached to the surface change cold storage member, and the evaporator is thermally conductively connected to the phase change cold storage member;
  • the heat storage module includes an electric heating member And a phase change heat storage member, wherein the electric heating member is thermally conductively connected to the phase change heat storage member, and the phase change heat storage member is In the storage chamber, a phase change cold accumulating material is disposed in the phase change cool storage member, and a phase change thermal storage material
  • the storage cavity is provided with a heat conducting plate, the heat pipe is attached to the heat conducting plate; or the storage cavity is a metal heat conducting body, and the heat pipe is attached to the storage On the object cavity.
  • an end of the heat pipe is connected to a bottom of the phase change cold storage component.
  • the evaporator is located in the phase change cold storage component, the evaporator includes a plurality of evaporation plates, and the evaporation plates are arranged side by side, and the distance between two adjacent evaporation plates is 20 mm. Up to 50 mm, the distance between the evaporator and the side wall and the bottom of the phase change cold storage member is 30 mm to 50 mm.
  • phase change cold storage member and the phase change heat storage member are respectively provided with temperature sensors.
  • the thermal storage module further includes a heat conductive outer casing, the electric heating component and the phase change heat storage component are encapsulated in the heat conductive outer casing, and the heat conductive outer casing is disposed in the storage cavity .
  • a thermal protection switch connected to the electric heating component is further disposed in the heat conducting housing.
  • a sealing heat insulation board is disposed between the phase change cold storage component and the storage cavity, and the heat pipe passes through the sealing heat insulation board.
  • the present invention also provides a cold storage and heat storage combined constant temperature device control method, which adopts the above-mentioned cold storage and heat storage combined constant temperature device; the control method includes a power supply state control method and a power failure state control method:
  • the power state control method includes:
  • the compressor When the temperature of the phase change cold storage member is higher than the upper limit of the cold storage temperature of the phase change cold storage member ⁇ , the compressor is energized and cooled, and the cold air is transferred to the phase change cold accumulating material through the evaporator, and the phase change cold storage member passes through The heat pipe transfers the cooling amount to the storage cavity to achieve the cooling function;
  • phase change heat storage member When the temperature of the phase change heat storage member is lower than the heat storage temperature lower limit value of the phase change heat storage member, the heat generated by the electric heating member is energized, and the phase change heat storage material is heated and stored, Passing heat to the storage cavity through the surface of the phase change heat storage member to achieve the heat preservation function;
  • the power-off state control method includes:
  • phase change regenerative material phase change releases the cooling amount, and the heat transfer between the long turns is performed to achieve the cooling of the storage cavity, so that the temperature of the storage cavity in the cold storage regenerative thermostat is lower than the storage temperature.
  • the upper limit value at the same time, the temperature of the storage chamber is lower than the phase change temperature value of the phase change heat storage material, the phase change heat storage material phase change releases heat to absorb excess cold of the storage space, so that the cold storage heat storage Storage chamber in a thermostatic device The temperature is above the lower limit of the storage temperature.
  • the upper limit of the cold storage temperature changes inversely with the change of the ambient temperature
  • the lower limit of the heat storage temperature changes inversely with the change of the ambient temperature
  • the cold storage and heat storage combined constant temperature device and the control method provided by the present invention by providing a phase change cold storage member and a phase change heat storage member, the evaporator cools the phase change cold storage material in the phase change cold storage member, and the electric heating member heats The phase change heat storage material in the phase change heat storage component, because the phase change material will continuously store or release energy during the phase change process, so that a large amount of energy can be quickly stored in the energy supply; It ensures the stable storage temperature in the storage cavity, avoids the excessive change of the storage temperature of the storage cavity, realizes the constant temperature refrigerating storage, and improves the safety of the cold chain process of medicines and vaccines.
  • FIG. 1 is a schematic structural view 1 of an embodiment of a cold storage and heat storage combined constant temperature device according to the present invention
  • FIG. 2 is a schematic structural view 2 of an embodiment of a cold storage and heat storage combined thermostat device according to the present invention
  • FIG. 3 is a schematic structural view of a heat storage module in an embodiment of a cold storage and heat storage combined constant temperature device according to the present invention.
  • the cold storage and heat storage combined constant temperature device of the present embodiment includes an insulation case 1, an electric energy supply device (not shown), a compressor 2, an evaporator 3, and a condenser 4, and a compressor 2
  • the evaporator 3 and the condenser 4 are connected to form a refrigeration circuit, wherein a throttle device is further disposed between the evaporator 3 and the condenser 4, and the storage chamber 12 is further provided with a storage chamber 12, which is stored in the embodiment.
  • the thermal combined thermostat device further includes a cold storage module and a heat storage module
  • the cold storage module includes a variable cold storage component 11 and a heat pipe 5
  • the evaporator 3 is thermally coupled to the phase change cold storage component 11
  • the heat storage pipe 5 is further disposed on the storage cavity 12.
  • One end portion of the heat pipe 5 is inserted into or attached to the surface of the phase change cool storage member 11 for heat exchange
  • the heat storage module includes an electric heating member 61 and a phase change heat storage member 62, and the electric heating
  • the member 61 is thermally conductively connected to the phase change heat storage member 62
  • the phase change heat storage member 62 is located in the storage chamber 12, and the phase change cold storage member 11 is provided with a phase change.
  • the phase change heat storage member 62 is provided with a phase change heat storage material, and the power supply device is connected to the compressor 2 and the electric heating member 61.
  • the phase change temperature value of the phase change heat storage material is higher than the variable temperature value of the phase change cold storage material.
  • the phase change cold storage member 11 and the phase change heat storage member 62 are provided, and the phase change cold storage material in the phase change cold storage member 11 is used for storing the cold storage amount.
  • the phase change heat storage material in the phase change heat storage member 62 is used to store heat, and the phase change cold storage member 11 and the phase change heat storage member 62 cooperate with each other to satisfy a range of a large ring temperature change (for example, a ring temperature of 45). °C to -10 ° C), the cold storage and heat storage combined constant temperature device of this embodiment maintains the constant temperature storage between the long turns.
  • the phase change cold storage material may be a material having a phase transition point temperature of about 0 ° C, for example: water; and the phase change heat storage material may be a phase change material having a phase transition point temperature of between 3 and 6 ° C.
  • the phase transition temperature range is narrow (about 4 to 5 ° C), the latent heat of phase change is large, and a small amount of material can be used to store more heat, which satisfies the refrigerator. Temperature maintenance in the event of a long energy outage is required.
  • the compressor 2 and the electric heating unit 61 are energized as needed, and when the temperature of the phase change regenerator member is higher than the upper limit of the regenerative cooling temperature of the phase change regenerator member, the compressor 2 is energized, the evaporator 3, the water in the phase change regenerator member 11 is directly cooled, so that the ice-water mixed state is formed in the phase change regenerator member 11, and the heat pipe 5 inserted in the phase change regenerator member 11 transmits the cold amount in the phase change regenerator member 11.
  • the performance entity of the cold storage and heat storage combined constant temperature device of this embodiment may be a vertical refrigeration device as shown in Fig. 1, or a horizontal refrigeration device as shown in Fig. 2.
  • the phase change cool storage member 11 is provided with a temperature sensor (not shown) for detecting the temperature in the phase change cold storage member 11 in the storage chamber of the cold storage heat storage combined constant temperature device of the present embodiment.
  • the temperature in the body 12 is set to the refrigerating temperature as an example, and the cold storage temperature in the phase change regenerator 11 is set to -2 ° C to 2 ° C, that is, when the temperature in the phase change regenerator 11 reaches -2°.
  • the compressor 2 is stopped; when the temperature in the phase change regenerator 11 rises above 2 °C, the compressor 2 is turned off, so that most of the water in the temperature in the phase change regenerator 11 is frozen.
  • the heat insulating box 1 is provided with a heat insulating panel 10, and the heat insulating panel 10
  • the incubator 1 is divided into an upper mounting cavity and a lower mounting cavity, the phase change regenerator component 11 is located in the upper mounting cavity, the storage cavity 12 is located in the lower mounting cavity, and the phase change regenerator component 11 is separated from the storage cavity 12
  • the hot plate 10 isolates the crucible so that the heat exchange between the two is complete with the heat pipe 5.
  • the minimum heat transfer temperature difference characteristic that is, the condensation section and evaporation of the heat pipe 5 during the heat transfer process.
  • the minimum heat transfer temperature difference is related to the type, structure, working medium and other factors of the heat pipe 5, and can be appropriately adjusted according to design requirements. For example, in vaccine refrigerating applications, it is generally necessary to ensure that the temperature of the refrigerating space in the storage chamber 12 is not lower than 2 ° C, and the temperature of the phase change regenerative component 11 is substantially maintained at 0 ° C during freezing and melting.
  • the heat transfer temperature of the heat pipe 5 can be designed to be 2 ° C, so that when the temperature of the refrigerating space in the storage chamber 12 is lowered to 2 ° C, the heat transfer amount of the heat pipe 5 is close to the minimum heat transfer difference of the heat pipe 5 The occurrence of a situation in which the temperature of the refrigerated storage space in the storage chamber 12 is too low is avoided.
  • the storage cavity 12 may be a metal heat conductive biliary body, or a heat conducting plate 13 may be disposed on the storage cavity 12, and the heat pipe 5 is attached to the heat conducting plate. 13 on.
  • the heat conducting plate 13 can release the cooling amount transmitted by the heat pipe 5 into the storage cavity 12 more uniformly.
  • the heat pipe 5 and the heat conducting plate 13 are distributed in the storage cavity 12 In the upper position, the heat conducting plate 13 introduces the cooling amount into the storage chamber 12 more uniformly by means of the natural sinking and radiation of the cold air, without the need for the fan to circulate.
  • the evaporator 3 includes a plurality of evaporation plates 31 which are arranged side by side, and the distance between the adjacent two evaporation plates 31 is 20 mm to 50 mm, and between the side wall and the bottom of the evaporator 3 and the phase change regenerator member 11 The distance is 30mm to 50mm.
  • the evaporation plates 31 are arranged in parallel at a certain interval in the phase change regenerative component 1 1 to enhance heat exchange efficiency, which is advantageous for rapid and uniform freezing of water into ice for cold storage.
  • the evaporator 3 is spaced apart from the bottom and the periphery of the phase change regenerator member 11 so that the water in contact with the evaporation plate 31 freezes and then freezes with the water in contact with the inner surface of the phase change regenerator member 11, thereby preventing the phase change regenerator member 11 from being frozen. It is deformed and deformed due to expansion of water during freezing and freezing; at the same time, the water in contact with heat pipe 5 can be kept at 0 °C during freezing and melting of ice, which is beneficial to control the temperature of condensation section of heat pipe 5. The degree is constant, which in turn helps to maintain a constant storage temperature inside the storage chamber 12.
  • the heat pipe 5 in order to enhance the heat exchange efficiency between the heat pipe 5 and the phase change regenerator member 11, the heat pipe 5 is inserted in the bottom of the phase change regenerator member 11, and the heat pipe 5 is inserted in the phase change regenerator member 11.
  • the part is inclined upwards to ensure that the internal working fluid of the heat pipe 5 is smoothly recirculated, so that the heat exchange cycle is smoothly performed.
  • the thermal storage module further includes a heat conductive outer casing 63, and the electric heating component 61 and the phase change thermal storage component 62 are encapsulated in the heat conductive outer casing 63.
  • a thermally conductive outer casing 63 is disposed in the storage cavity 12.
  • the electric heating component 61 and the phase change thermal storage component 62 are packaged together by the heat conducting outer casing 63 and mounted on the storage cavity 12, and the electric heating component 61 abuts against the phase change thermal storage component 62 to store heat.
  • the module releases heat to the interior of the storage cavity 12 through the thermally conductive outer casing 63.
  • the thermally conductive outer casing 63 enhances heat exchange between the electrically heated component 61 and the phase change thermal storage component 62.
  • the heat conducting outer casing 63 is further provided with a thermal protection switch 64 connected to the electric heating component 61.
  • the thermal protection switch 64 can prevent the cold accumulating heat storage combined thermostat device from failing control of the embodiment, and the electric heating component 61
  • the continuous energization causes the temperature of the storage chamber 12 to rise abnormally.
  • the thermal protection switch 64 has an operating temperature range of 4 to 20 ° C, and is closed at a high temperature and closed at a low temperature.
  • a temperature sensor is also provided in the phase change heat storage member 62.
  • the normal heating and switching of the thermal storage module is controlled by the main board of the cold storage and heat storage combined constant temperature device of the embodiment, and the working temperature range is generally between 2 and 8 ° C, the heating is started at a low temperature point, and the heating is stopped at a high temperature point.
  • the present invention also provides a control method using the above-described cold storage and heat storage combined constant temperature device; the control method includes a power supply state control method and a power failure state control method:
  • the power-on state control method includes:
  • phase change cool storage member When the temperature of the phase change cool storage member is higher than the upper limit of the cold storage temperature of the phase change cold storage member ⁇ , the compressor is energized and cooled, and the cold air is transferred to the phase change cold accumulating material through the evaporator, and the phase change cold storage member passes through The heat pipe transfers the cooling amount to the storage cavity to achieve the cooling function;
  • phase change heat storage member When the temperature of the phase change heat storage member is lower than the heat storage temperature lower limit value of the phase change heat storage member, the heat generated by the electric heating member is energized, and the phase change heat storage material is heated and stored, Passing heat to the storage cavity through the surface of the phase change heat storage member to achieve the heat preservation function;
  • the power-off state control method includes:
  • phase change regenerative material phase change releases the cooling amount, and the heat transfer is performed by the heat pipe to cool the storage cavity between the long turns
  • the function of the storage chamber in the cold storage regenerative thermostat is lower than the upper limit of the storage temperature, and the temperature in the storage chamber is lower than the phase transition temperature of the phase change thermal storage material.
  • the phase change of the heat storage material releases heat to absorb excess cooling capacity of the storage space, so that the temperature of the storage cavity in the cold storage regenerative thermostat is higher than the lower limit of the storage temperature.
  • phase change temperature value of the phase change regenerator material is lower than the storage temperature upper limit value
  • phase change temperature value of the phase change heat storage material is higher than the storage temperature lower limit value.
  • the upper limit of the cold storage temperature changes inversely with the change of the ambient temperature
  • the lower limit of the heat storage temperature changes inversely with the change of the ambient temperature.
  • the cold storage and heat storage combined constant temperature device and the control method provided by the present invention by providing a phase change cold storage member and a phase change heat storage member, the evaporator cools the phase change cold storage material in the phase change cold storage member, and the electric heating member heats The phase change heat storage material in the phase change heat storage component, because the phase change material will continuously store or release energy during the phase change process, so that a large amount of energy can be quickly stored in the energy supply; It ensures the stable storage temperature in the storage cavity, avoids the excessive change of the storage temperature of the storage cavity, realizes the constant temperature refrigerating storage, and improves the safety of the cold chain process of medicines and vaccines.
  • the phase change cold storage component and the phase change thermal storage component can automatically release the cooling amount or heat according to the influence of the external environment on the internal temperature of the storage cavity, thereby achieving no need without using the battery.
  • the refrigeration equipment maintains the cooling state between the long turns, and prolongs the cooling and heat preservation time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un appareil thermostatique combinant accumulation de froid et accumulation de chaleur ainsi qu'un procédé de commande associé. L'appareil thermostatique combinant accumulation de froid et accumulation de chaleur comprend un corps de boîte (1) de conservation de chaleur, un compresseur (2), un évaporateur (3) et un condenseur (4). Une cavité de stockage (12) est prévue dans le corps de boîte (1) de conservation de chaleur, et le corps de boîte de conservation de chaleur comprend en outre un module d'accumulation de froid et un module d'accumulation de chaleur. Le module d'accumulation de froid comprend un composant (11) d'accumulation de froid à changement de phase et un caloduc (5). Le caloduc (5) est situé dans la cavité de stockage (12). Une partie d'extrémité du caloduc (5) est insérée dans le composant (11) d'accumulation de froid à changement de phase ou est fixée à la surface du composant (11) d'accumulation de froid à changement de phase. L'évaporateur (3) est en conduction thermique avec le composant (11) d'accumulation de froid à changement de phase. Le module d'accumulation de chaleur comprend un composant de chauffage électrique (61) et un composant (62) d'accumulation de chaleur à changement de phase. Le composant de chauffage électrique (61) est en conduction thermique avec le composant (62) d'accumulation de chaleur à changement de phase. Le composant (62) d'accumulation de la chaleur à changement de phase est situé dans la cavité de stockage (12). Un matériau d'accumulation de froid à changement de phase est situé dans le composant (11) d'accumulation de froid à changement de phase. Un matériau d'accumulation de chaleur à changement de phase est situé dans le composant (62) d'accumulation de chaleur à changement de phase. L'appareil thermostatique combinant accumulation de froid et accumulation de chaleur permet une conservation thermostatique réfrigérée et améliore la sécurité de traitement de médicaments et de vaccins faisant intervenir la chaîne du froid.
PCT/CN2015/098353 2015-07-16 2015-12-23 Appareil thermostatique combinant accumulation de froid et accumulation de chaleur ainsi que procédé de commande associé Ceased WO2017008445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2015104168947 2015-07-16
CN201510416894.7A CN105444488B (zh) 2015-07-16 2015-07-16 蓄冷蓄热组合式恒温设备及控制方法

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CN108800276A (zh) * 2018-05-08 2018-11-13 李渊 一种电蓄热装置
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CN111397277B (zh) * 2020-03-27 2022-08-30 海信冰箱有限公司 冰箱
CN111503972A (zh) * 2020-04-07 2020-08-07 浙江科技学院 一种小型移动式相变蓄冷保鲜冷库
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CN204854115U (zh) * 2015-07-16 2015-12-09 青岛海尔特种电器有限公司 蓄冷蓄热组合式恒温设备

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CN113310338A (zh) * 2021-06-01 2021-08-27 国网河北省电力有限公司电力科学研究院 光气储多能互补冷热电联供系统及其的蓄热模块

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